Re: machining of STL files

From: asrp (
Date: Thu Apr 10 2003 - 02:43:46 EEST

            WorkNC has an excellent capability to machine STL files. You can merge STL , IGES together and machine it no problem. If you got big flat faces to machine better go for Iges to use flat machining, otherwise can't recognise flat areas on STL, which is understandable for facet body. URL is


----- Original Message -----
From: "Rohit Kumar" <>
To: <>
Sent: Thursday, April 10, 2003 5:31 AM
Subject: machining of STL files

> Hi.
> I had a question on machining of STL files.
> Since STL files are faceted, if mold is machined, what's the
> guarantee that the core and cavity would seal properly
> (assuming the parting line is not perfectly straight and has
> sort of a contour to it)?
> My understanding is that if the resolution of the triangles
> is within that of the milling process, then there is no
> problem. However, if it's not, what happens then? For molds
> made via SLA, the mold material is soft. So applying
> pressure, would sort of deform the material such that at the
> parting plane, the core and cavity make a seal. But say if
> the mold is made out of tool steel, what happens then? BTW,
> is mold ever made out of tool steel via STL files?
> Any inputs will be appreciated.
> Best regards,
> Rohit.

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